Avancerad sökning

Hittade 2 uppsatser som matchar ovanstående sökkriterier.

1. 1. Imaging the 3D distribution of cation adsorption sites in undisturbed soil

   Master-uppsats, SLU/Dept. of Soil and Environment

   Författare :Hannes Keck; [2016]
   Nyckelord :cation exchange capacity; X-ray scanning; soil structure; contrast agent; heterogeneity;

   Sammanfattning : Most soil system models assume that the cation adsorption sites in soils are accessible and homogeneously distributed in space. This assumption is likely to be invalid, which may have significant consequences on the performance of these models. LÄS MER

3. 2. What is the impact of entrapped air on the measurement of saturated hydraulic conductivity of soil?

   Master-uppsats, SLU/Dept. of Soil and Environment

   Författare :Maryia Babko; [2016]
   Nyckelord :air bubbles; vacuum saturation; X-ray computed tomography; the constant-head method of Ks measurement; standard laboratory method of saturation; critical pore diameter;

   Sammanfattning : X-ray computed tomography was applied to investigate the influence of entrapped air on standard laboratory measurements of saturated hydraulic conductivity Ks in five soil samples. The investigation consisted of five X-ray scans for each sample. Soil samples were saturated by the standard laboratory method from the bottom at the first step. LÄS MER